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The figure shows that the change wallets filtered out by the rule2 are located in the marginal area of the target wallet group. And most of them are in the form of a pair. The rectangles in this figure are the change wallets detected by rule 2, and their location demonstrate the paired structures, such as 3KHcRN vs 3JzJ5V and 3KHcRN vs 3JzJ5V. Because the change wallet pairs are less connected to other wallets, the structural difference caused by rule 2 is not as obvious as by rule 1. Therefore, rule 2 produces less impact on the overall transaction structure.
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IEEE/ICACT20210137 Slide.16
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